Delta ASD-A2-1021-M AC Servo Drive (ASDA-A2 Series)

Product Overview

The Delta ASD-A2-1021-M (ASDA21021M) is a high-performance 1 kW AC Servo Drive from the advanced ASDA-A2 Series. Engineered for applications requiring extreme precision, high-speed response, and superior motion control, the ASD-A2-1021-M is a staple in high-end CNC machining, electronic assembly, and robotic systems. The "M" type model is specifically designed for CANopen communication, allowing for seamless integration into high-speed networked motion control architectures. With integrated electronic cam (E-Cam) functions and support for high-resolution 20-bit encoders, this drive provides the accuracy needed for complex contouring and synchronized multi-axis movement.

Technical Configuration

The ASD-A2-1021-M operates on a 220V single-phase supply and delivers a robust 1 kW output power. It features a dual-loop control architecture that incorporates a high-speed digital signal processor (DSP), enabling a velocity frequency response of up to 1 kHz, which significantly reduces settling time and increases throughput.

The "M" model stands out due to its built-in CANopen interface, conforming to the DS301 and DSP402 protocols. It supports high-speed communication rates up to 1 Mbps. Furthermore, the drive includes a 17-bit (160,000 p/rev) or 20-bit (1,280,000 p/rev) incremental/absolute encoder interface, which virtually eliminates mechanical vibration during low-speed operation. The integrated Electronic Cam (E-Cam) function allows for 720 points of cam profile storage, perfect for flying shear or rotary nutter applications without the need for a high-end external controller.

Technical Specifications

Technical FAQs

Q1: What are the main advantages of the "M" type model?A1: The "M" model is optimized for CANopen bus communication. It also supports full-closed loop control, allowing the drive to receive feedback from an external linear scale or encoder to compensate for mechanical backlash and ensure absolute positioning accuracy at the tool tip.

Q2: Can I run this 1 kW drive on a standard single-phase residential power supply?A2: While the voltage (220V) matches, ensure your circuit breaker and wiring can handle the peak current draw of a 1 kW servo system. For industrial stability, a dedicated circuit with proper noise filtering is highly recommended.

Q3: How does the E-Cam function help my application?A3: The built-in E-Cam allows the drive to follow a master signal (like a conveyor belt speed) with a custom motion profile. This is ideal for machines that perform "Labeling on the fly" or "Flying Shears," as it handles the complex math locally inside the drive rather than in the PLC.

Engineering & Installation Guide

• Communication Wiring: When using the CANopen interface, use high-quality shielded twisted-pair cables and ensure a 120-ohm termination resistor is installed at both ends of the network. This prevents signal reflections that can cause intermittent communication "Bus-Off" errors.

• Heat Management: Servo drives generate significant heat during rapid acceleration/deceleration. Ensure at least 50 mm of vertical clearance above and below the drive. If mounting multiple drives in a single cabinet, use forced-air cooling to maintain an ambient temperature below 45°C.

• Encoder Cable Precautions: To maintain the 20-bit resolution, encoder cables must be kept separate from the high-voltage motor power cables. Use Delta's original factory-made cables to ensure proper shielding and signal integrity over distances exceeding 10 meters.

Engineering Advantages

The ASD-A2-1021-M is distinguished by its vibration suppression algorithms, which automatically detect and filter out mechanical resonance frequencies. This allows for higher gain settings and faster response times without the "humming" or instability common in lesser drives. Additionally, the Capture and Compare functions operate at the hardware level (within 5 μs), providing ultra-high-speed synchronization for vision systems or registration mark detection. The "PR Mode" (Positioning Register) allows for up to 64 internal motion paths, enabling complex sequences to be triggered via simple digital inputs.